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Merge mysql.com:/home/timka/mysql/src/5.0-virgin
into mysql.com:/home/timka/mysql/src/5.0-bug-8576 sql/opt_range.cc: Auto merged
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@ -7030,8 +7030,12 @@ get_best_group_min_max(PARAM *param, SEL_TREE *tree)
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cur_group_key_parts, tree, cur_index_tree,
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cur_quick_prefix_records, have_min, have_max,
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&cur_read_cost, &cur_records);
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if (cur_read_cost < best_read_cost)
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/*
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If cur_read_cost is lower than best_read_cost use cur_index.
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Do not compare doubles directly because they may have different
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representations (64 vs. 80 bits).
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*/
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if (cur_read_cost < best_read_cost - (DBL_EPSILON * cur_read_cost))
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{
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index_info= cur_index_info;
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index= cur_index;
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